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Simplifying 3x2 + 5x + -17 + 6x = 20 Reorder the terms: -17 + 5x + 6x + 3x2 = 20 Combine like terms: 5x + 6x = 11x -17 + 11x + 3x2 = 20 Solving -17 + 11x + 3x2 = 20 Solving for variable 'x'. Reorder the terms: -17 + -20 + 11x + 3x2 = 20 + -20 Combine like terms: -17 + -20 = -37 -37 + 11x + 3x2 = 20 + -20 Combine like terms: 20 + -20 = 0 -37 + 11x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -12.33333333 + 3.666666667x + x2 = 0 Move the constant term to the right: Add '12.33333333' to each side of the equation. -12.33333333 + 3.666666667x + 12.33333333 + x2 = 0 + 12.33333333 Reorder the terms: -12.33333333 + 12.33333333 + 3.666666667x + x2 = 0 + 12.33333333 Combine like terms: -12.33333333 + 12.33333333 = 0.00000000 0.00000000 + 3.666666667x + x2 = 0 + 12.33333333 3.666666667x + x2 = 0 + 12.33333333 Combine like terms: 0 + 12.33333333 = 12.33333333 3.666666667x + x2 = 12.33333333 The x term is 3.666666667x. Take half its coefficient (1.833333334). Square it (3.361111114) and add it to both sides. Add '3.361111114' to each side of the equation. 3.666666667x + 3.361111114 + x2 = 12.33333333 + 3.361111114 Reorder the terms: 3.361111114 + 3.666666667x + x2 = 12.33333333 + 3.361111114 Combine like terms: 12.33333333 + 3.361111114 = 15.694444444 3.361111114 + 3.666666667x + x2 = 15.694444444 Factor a perfect square on the left side: (x + 1.833333334)(x + 1.833333334) = 15.694444444 Calculate the square root of the right side: 3.961621441 Break this problem into two subproblems by setting (x + 1.833333334) equal to 3.961621441 and -3.961621441.Subproblem 1
x + 1.833333334 = 3.961621441 Simplifying x + 1.833333334 = 3.961621441 Reorder the terms: 1.833333334 + x = 3.961621441 Solving 1.833333334 + x = 3.961621441 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.833333334' to each side of the equation. 1.833333334 + -1.833333334 + x = 3.961621441 + -1.833333334 Combine like terms: 1.833333334 + -1.833333334 = 0.000000000 0.000000000 + x = 3.961621441 + -1.833333334 x = 3.961621441 + -1.833333334 Combine like terms: 3.961621441 + -1.833333334 = 2.128288107 x = 2.128288107 Simplifying x = 2.128288107Subproblem 2
x + 1.833333334 = -3.961621441 Simplifying x + 1.833333334 = -3.961621441 Reorder the terms: 1.833333334 + x = -3.961621441 Solving 1.833333334 + x = -3.961621441 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.833333334' to each side of the equation. 1.833333334 + -1.833333334 + x = -3.961621441 + -1.833333334 Combine like terms: 1.833333334 + -1.833333334 = 0.000000000 0.000000000 + x = -3.961621441 + -1.833333334 x = -3.961621441 + -1.833333334 Combine like terms: -3.961621441 + -1.833333334 = -5.794954775 x = -5.794954775 Simplifying x = -5.794954775Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.128288107, -5.794954775}
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